Wednesday, February 23, 2011

Someone e-mail to me about electrical usage at house. Just want to share with you all. Anyway, have you forgotten how to calculate electricity bill ?Here is a simple example to help you calculate electricity consumption. Let's assume you have one 100watt light bulb switched on for one hour. This will consume 100 watts per hour or 0.1 kilowatt hours (a kilowatt being 1000 watts). If you had ten 100watt light bulbs switched on for one hour your consumption would therefore be 10 x 100watts = 1000watts which is 1 kWh. You could then look at your electrical suppliers rate per unit (kWh) and see what the actual costs incurred are.

Interference is the effect of superposition of two waves from two coherent sources.

Coherent waves are the waves that can produce same frequency, same amplitude and same phase ( or with constant phase difference ).

Theprinciple of superposition states that when two waves meet at the same point, the resultant displacement at that point is equal to the vector sum of the displacements produced by the individual waves at that point.

The constructive interference occurs when two crests or two troughs meet each other.

The destructive interference occurs when a crest meets a trough.

Anti-nodal line is a line joining all the constructive interference points

Wednesday, February 9, 2011

MALACCA: Seventeen-year-old Sally Lee Qian Chun (pic) posted disturbing online comments several days ago about wanting to end her life.

Yesterday morning, her classmates at SMK Seri Kota in Ayer Leleh watched in horror as she fell from the second floor of the school and died from head injuries. In the 9.15am tragedy, Sally Lee Qian Chun, a Form 5 student, abruptly walked out during the Chemistry lesson in the laboratory on the first floor and went to her classroom a floor above.

On Sunday night, at around 11.07pm, Lee lamented on her Facebook of a failed relationship and broken promises while reiterating her desire to take her own life. Her remarks drew some taunts and dares from her online friends. Some commentators even asked her to go ahead with what she wanted to do. In her last posting at 3.45pm on Monday, Lee reminded her friends to keep their promises of buying her a teddy bear and coffin. She also told them not to miss her when she was gone and to take care of themselves

Last December, a 22-year-old man, Alviss Kong took his own life after another failed relationship. He posted, also on Facebook, a 45-minute countdown to his suicide. The youth jumped from the 14th floor of an apartment block in Cheras.

It was reported that the man became depressed after his girlfriend of four months broke up with him.

--------------------------------------------------------------------------------------------------Depression have become number one disease in the world. Loneliness and emptiness surrounding our heart, leads us to make a foolish decision. Committing suicide is the only way to solve problems in nowadays generation. The devil has succeeded his plan. Do you know that committing suicide is a sinful act? You have to pay a hefty price eternally for doing suicide.

I pray to the Lord that my student will not succumb to this idea of commit suicide whenever they meet unsolved problems. I pray that they will seek HIM, my wonderful teacher to get divine help. Nothing is impossible in God's eyes. Seek HIM faithfully and you will not thirsty again. Your heart is full of joy and peace. Believe me!......If not, try HIM.

Tuesday, February 1, 2011

PETALING JAYA: Jess Lee Kar Wei made Malaysia proud by winning the seventh season of Taiwan’s wildly popular singing competition reality TV show One Million Star (also known as Superstar Avenue) on Sunday night. The homegrown vocal powerhouse, who once declared ‘Malaysia boleh! Saya boleh!’ during the competition is One Million Star’s first Malaysian champion. Her win entitles her to a cash prize of NT1mil (RM100,000) and a recording contract with Warner Music Group.

The third in a family of four girls, Lee started singing and taking vocal lessons at age eight. The 22-year-old Seremban-born lass was one of two Malaysians who made it to the final six and went on to set a record for scoring full marks four times consecutively in the final round of competition. Apart from singing English songs like What’s Up? and Beyonce’s Listen, Lee even introduced Taiwan’s audiences to a Malay song, Gemilang. Her final winning song Hui Jia (Going Home by Shunza) brought tears to One Million Star judge Kay Huang who declared that Lee was ready for the international stage.

She entered Malaysian Idol's first season in 2004, fumbled badly at auditions, but was still invited back to perform at the finals with a reverberating Kaulah Segala Nya. That was 7 years ago. She did improve when she entered Astro Star Quest in 2008. The never say die, but keep learning attitude kept her going, and she made it after 7 years .... and she is still just 22. Now she has a recording contract with Warner Music Group.

Failure doesn't mean you are going to fail forever, instead failure makes you stronger and wiser

In a voltaic cell, two different metals are used to create a potential difference. A higher metal in the electrochemical series ...

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The Power of Teachers

"Any nation is as great, as good, as its citizens make it........It is teachers more than any other single group of people who determine attitudes, and who shape the ideas and aspirations of the nation." Julius Nyerere, 1966